Results 11 to 20 of about 2,736,764 (275)
Growth Rings in the Roots of Temperate Forbs are Robust Annual Markers
Plant Biology, 2006 Abstract: There is increasing interest in the analysis of annual growth rings in the secondary root xylem of perennial forbs (herb‐chronology). Therefore, we need to verify whether these growth rings are always formed annually. To investigate the formation of root rings we performed common garden experiments at two distinct sites in Switzerland.
Georg von Arx, H Dietz
exaly +4 more sources
Tree-Ring Chronologies from Nepal
, 1992 Ten ring-width based chronologies from Nepal are described and the prospects for further dendroclimatic work there reviewed briefly. The initial results are encouraging, and more intensive subregional sampling is called for. All the cores examined showed
LaMarche, Valmore C., Jr. +2 more
core +5 more sources
Giant Sequoia Ring-Width Chronologies from the Central Sierra Nevada, California
, 1992 Giant sequoia was one of the first species that A. E. Douglass examined in his pioneering tree- ring research. Recent attention to sequoia, stimulated by fire history studies in sequoia groves, has resulted in new ring-width chronologies based on both ...
Swetnam, Thomas W. +4 more
core +5 more sources
Journal of Forest Science, 2021 Central Anatolia is one of the semi-arid regions of Turkey that does not offer very suitable conditions for the growth of trees. Tree growth is a process controlled by genetic, environmental and climatic factors. Trees record these signals, which provide
Gülzade Kahveci, Münevver Arslan
doaj +1 more source
Transition in viscoelastic properties within successive annual rings of radiata pine (Pinus radiata)
Journal of Wood Science, 2023 Dynamic mechanical analysis (DMA) measurements of water-saturated radiata pine wood in the temperature range from 0 ℃ to 100 ℃ were focused to clarify the transition in viscoelastic properties within successive annual rings.
Hiroaki Horiyama +2 more
doaj +1 more source
Intra-ring radial cracks in Sakhalin spruce (Picea glehnii) from artificial forest
Journal of Wood Science, 2023 The occurrence of radial cracks in Sakhalin spruce (Picea glehnii), differences in the degree of cracking among five habitats, and the relationship between cracks and wood density were investigated in a total of 79 logs collected from five sites in ...
Satoru Murakami +3 more
doaj +1 more source
Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison [PDF]
Radiocarbon, 2020 ABSTRACTThe radiocarbon (14C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision of decay counting, it is now possible to efficiently produce large datasets of annual resolution for calibration purposes using small amounts of wood.
Wacker, L +32 more
openaire +9 more sources
Geoscience Letters, 2023 Tree-ring cellulose oxygen isotopic ratios have been widely studied as a hydrological proxy in monsoonal Asia. There has been, however, little attempt to perform proxy assessment of the intra-annual isotopic data to reconstruct hydroclimate with higher ...
Yumiko Watanabe +4 more
doaj +1 more source
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004 The work was focused on problematics of annual-rings width according to position within the tree stem. Annual-ring widths, ratio of late wood and early wood by spruce with compression wood were investigated.
Vladimír Gryc, Jiří Holan
doaj +1 more source
Evaluation the skid trail effect on annual ring width fluctuations in Beech (Fagus orientalis Lipsky) and Alder (Alnus subcordata C. A. Mey.) trees (District Nav No. 1, Asalem forests, Guilan) [PDF]
تحقیقات جنگل و صنوبر ایران, 2016 Each skid trail construction affects the trees located on the road margins in various extents. The present study was conducted with the aim to assess the changes in annual ring widths of Beech and Alder trees compared to the control trees inside the Nav ...
Milad Zarei Golbaghi +3 more
doaj +1 more source